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(No Model.) I

E. P. HOPMANN.

' PESSARY. No. 307,944. Patented Nov. 11, 1884.

- WITNESSES INVENTOR 4 I4 4 Emav E1 mgmm N. PETERS. mummy-1w. wmgum. nc.

UNITED STATES ATENT 0 FFICE.

ERNST F. HOFMANN, OF NEWV YORK, N. Y.

PESSA RY.

SPECIFICATION farming part of Letters Patent No. 307,944, dated November 11, 1884.

Application filed April 10, 1884.

To all whom it may concern.-

Be it known that I, ERNST F. HOFMANN, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Pessaries, of which the following is a specification.

This invention relates to an improvement on the pessary described in Letters Patent No. 65,382, granted to me June 4, 1867.

The peculiar and novel form and construction of my new pessary is pointed out in the following specification and claim, and illustrated in the accompanying drawings, in which Figure 1 represents aplan or top view. Fig. 2 is a longitudinal vertical section in the plane w m, Fig. 1. Fig. 3 is a front view.

Similar letters indicate correspondingparts.

In the drawings, the letterA designates my pessary, which is made of hard rubber or any other suitable material. Its rear portion, a, rises up to a level considerably above the level of the front portion, b, (see Fig. 2,) forming an abrupt ridge, 0, round the rear portion of the opening B of the pessary, said ridge ex tending about halfway round the opening. (See Fig. 1.) The rear and front surfaces, d e, of the pessary are concave, the same as in the pessary described in Patent No. 65, 382; but 30 while the side surfaces in the old pessary are No model.)

convex, the side surfaces,fg, of my new pessary are concave, as shown in Fig. l. "When the pessary is in position, the flesh of the surrounding parts enters the concavities of the side surfaces, f g, and by these means the 5 pessary is effectually prevented from turning round, and it is consequently retained in the required position. The upper edge of the ridge 0 is also concave, as shown in Fig. 3, and since the rear side of the uterus settles down 0 into this concavity, an additional hold is given .to the pessary, and at the same time no undue ERNST F. HOFMANN. 1..s.

Vitnesses:

E. F. KASTENHUBER, WILLIAM MILLER. 

